HTTP – XCAP
Hypertext Transfer Protocol (XCAP)
In the context of the Ut interface, HTTP is used in support of XCAP (XML Configuration Access Protocol) operation, which allows subscribers to remotely access and manipulate configuration files stored on Application Servers in the network. In essence, an XML configuration file can be broken up into unique URLs, after which point regular HTTP expressions such as GET and PUT can be used by the mobile to access and alter the XML configuration as necessary.